Tailored Predictive Analytics Solutions for Retail

About 
Software Consultancy and Solution Design for your IT business. 
Serverless architecture and Containers microservices gives us flexibility and scalability to provide IT solutions for every need. 

We truly believe that nowadays Serverless is a great add-on for Agile methodology  

Services Description
We are a small team with very qualified engineers. 
Our engineers use the best practices of software development including 
Test Driven Development (TDD), refactoring and design patterns.   

Our typical project is a large, complex, often some kind of custom application which address needs that cannot be covered by an existing solution.  

Our platform of choice is Java as it perfectly aligns with our values and allows our engineers to quickly write a high-quality code which is easy to extend and maintain.  We are in love with Kotlin and Scala. 

Our Python engineers are able to build super fast Lamda serverless code for every need. 
Our devOps team will keep development process aligned with overall process. 
Solutions like AWS Codebuild + Code Pipeline can be a valuable add-on for an Agile team. 

 
$1,000+
 
$25 - $49 / hr
 
10 - 49
 Founded
2013
Show all +
Dnipro, Ukraine
headquarters
  • Dnipro 49000
    Ukraine

Reviews

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Serverless AWS Website Dev for IT Company

“I have a very high level of confidence with Perfsys.”

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
Less than $10,000
 
Nov. 2017 - Mar. 2018
Project summary: 

Perfsys created a cloud-based website and a CodePipeline for building and deploying sources. The team used a range of technologies including AWS S3 and CloudFront, Python, and API Gateway.

The Reviewer
 
1-10 Employees
 
Russia
Alexey Scherbakov
CTO, Intro Inc.
 
Verified
The Review
Feedback summary: 

Reliable and consistent, Perfsys offers a solid cost-effective maintenance package with built-in alerts. The team is proactive in resolving website errors, ensuring users experience few to no issues. Although they can improve bespoke development, they are trustworthy and provide candid feedback.

BACKGROUND

Please describe your company and your position there.

I am the CTO of Intro, Inc.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire Perfsys?

We hired Perfsys to create a serverless website and a CodePipeline for building and deploying sources. 

What were your goals for this project?

 The goal was a cloud-based website that met our requirements. 

SOLUTION

How did you select this vendor?

We selected them based on recommendations from our partners.

Describe the project in detail.

They built the website using AWS S3 and AWS CloudFront. The project also required experience in Python, API Gateway, and AWS Lambda. 

What was the team composition?

They provided one full-time Python developer, one full-time Javascript frontend developer, and one development operations manager. 

RESULTS & FEEDBACK

Can you share any outcomes from the project that demonstrate progress or success?

I trust them. I can go to bed at night and know that I will not wake up in the morning to a user complaint about website or login errors, something I experienced on a weekly basis with my previous agency. I have a very high level of confidence with Perfsys. Their maintenance package includes built-in alerts, none of which have been triggered yet. If something were to go wrong on the Perfsys side, I am confident they will know about it and resolve it before I hear of it from a user. 

How effective was the workflow between your team and theirs?

Their development workflow was based on the Agile/SCRUM approach. We had daily sync calls as well as weekly planning meetings.

What did you find most impressive about this company?

Although we may suggest an idea, they will always keep us straight on industry best practices. The maintenance package I pay now is less than the retainer I for the previous agency, who regularly complained that the retainer was not enough to cover the number of hours they worked each month.  

Are there any areas for improvement?

They need to be more proactive in creating bespoke elements on the website and in suggesting better enhancements.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer

Full-Stack Development for Healthcare App Developer

"They took great pride in the quality of their work."

Quality: 
4.0
Schedule: 
4.0
Cost: 
4.0
Willing to refer: 
5.0
The Project
 
$50,000 to $199,999
 
Jan. 2013 - Jan. 2014
Project summary: 

Perfsys provided their development expertise for creating an entire scalable product for end customers. They also supported decisions regarding the technologies to use and the solution’s architecture.

The Reviewer
 
11-50 Employees
 
Tampa, Florida
Christopher Wallace
CTO, Healthcare App Developer
 
Verified
The Review
Feedback summary: 

New clientele came in thanks to their involvement and the scalable and easy-to-configure product they created. Perfsys excels in adhering to timelines and producing error-free work regardless of its complexity.

BACKGROUND

Please describe your company and your position there.

I was the CTO of a company that was building applications focused on healthcare integration.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire Perfsys?

We hired them for full-stack application development.

What were your goals for this project?

We wanted to develop a scalable and configurable product that could be deployed to a customer site or hosted in our datacenter.

SOLUTION

How did you select this vendor?

We used an internal rating process in which we choose three vendors and have a formula with which we weigh their strengths and weaknesses. We do this in numerous ways, but mainly through interviews and open-source research.

Can you go into detail about the services they provided and the scope of the project?

Perfsys provided full-stack development using technologies such as Node.js, Docker, NoSQL, Hadoop, and Ext JS.

What was the team composition?

The team scaled from three to five people depending on the amount of work for a specific time frame. They also provided development and architecture support.

RESULTS & FEEDBACK

Can you share any information that demonstrates the impact that this project has had on your business?

We successfully built and deployed the product to production environments, and were able to gain business from the scalability and ease of configuration that the solution offers.

How was project management arranged and how effective was it?

The project was managed by an internal project manager. We used Google Hangouts, Mind Maps, and internal sprint management tools.

What did you find most impressive about this company?

Their ability to meet a deadline and implement complex solutions with little rework is remarkable.

Are there any areas where they can improve?

None that I can remember.

5.0
Overall Score I would use Perfsys again.
  • 4.0 Scheduling
    ON TIME / DEADLINES
    We didn't have any challenges in this aspect.
  • 4.0 Cost
    Value / within estimates
    Their price is competitive against other vendors.
  • 4.0 Quality
    Service & deliverables
    They took great pride in the quality of their work.
  • 5.0 NPS
    Willing to refer
    I would definitely refer Perfsys to other companies.